I have seen plans like this in multiple countries around the world. You buy sim card and have let's say 1 GB mobile traffic per day but Facebook/Youtube/Instagr

I have seen plans like this in multiple countries around the world. You buy sim card and have let's say 1 GB mobile traffic per day but Facebook/Youtube/Instagram is not counted into it so you can watch unlimited Youtube videos and use Facebook as much as you like. Quite scary, it will trap people in these walled gardens even more because of how these plans are structured.